You don’t need a blank document or a degree in creative writing. Bring the idea you’ve been carrying in your head, and let Reed, your virtual writer’s room, help you talk it through and bring every scene to life.
Free for one story with your own AI key · No account to make
Family mysteryWarm close third
The Tin Under the Oilskins
The cedar lid gave way with a dry, salt-stiff sigh that smelled more like the harbour than an upstairs closet. Beneath the heavy yellow oilskins, still creased where his elbows had bent fifty winters ago, sat a flat tobacco tin bound twice with sailmaker’s twine.
Reed asks
Every family mystery starts with an object that doesn’t belong. When your narrator opens the sea chest, what sits on top of the folded oilskins?
YouTwo ferry tickets from 1974, never punched, neither in his name.
THE OBJECT
The 1974 ferry tickets
THE SECRET🔒
Hidden until E9
THE VOICE
Warm close third
Sample written for this page
Pick a spark
Family mysteryStyle · Warm close third
Reed asks
Every family mystery starts with an object that doesn’t belong. When your narrator opens the sea chest, what sits on top of the folded oilskins?
Your call. Click an answer.
Modern fableStyle · Noir first person
Reed asks
It’s 3:15 a.m. and rain streaks the neon. A stranger at the counter slides something across the Formica toward the cook. What is he trying to trade away?
Your call. Click an answer.
Atmospheric suspenseStyle · Gothic dread
Reed asks
The Survey pays your mapmaker twice her yearly wage to leave one valley blank. When she rides out to it, what is the first sign the town is still there?
Your call. Click an answer.
Or answer in your own words…
Chapter 1 · Scene 1● Secrets kept
The Tin Under the Oilskins
The cedar lid gave way with a dry, salt-stiff sigh that smelled more like the harbour than an upstairs closet. Beneath the heavy yellow oilskins, still creased where his elbows had bent fifty winters ago, sat a flat tobacco tin bound twice with sailmaker’s twine.
Inside lay two pasteboard tickets for the evening crossing of the Northlight. Neither bore his name, and neither had been punched at the pier.
Pinned to your Story Board
THE OBJECT
The 1974 ferry tickets
Unpunched stubs for the Northlight, kept dry in a tobacco tin.
objects/ferry-tickets.md
THE SECRET🔒
Hidden until E9
He was not a passenger. He worked the wireless room.
lore/wireless-room.md
THE VOICE
Warm close third
Close to one heart. Plain, warm, unhurried.
story_config.json
Chapter 1 · Scene 1● Secrets kept
Four-Twelve on the Chain
She lifted the watch by its tarnished chain and felt the unexpected drag of an iron key wired tight to the swivel. Behind the scratched crystal, the thin blued hands waited at twelve minutes past four.
Her mother had sworn the old man sold the Creek End boathouse the autumn before he died. Yet the key was bright where a thumb had recently rubbed it clean.
Pinned to your Story Board
THE OBJECT
The stopped watch and key
Hands at 4:12. A boathouse key wired to the bow.
objects/stopped-watch.md
THE SECRET🔒
Hidden until E6
The boathouse was never sold. Someone still pays for it.
locations/creek-end.md
THE VOICE
Warm close third
Small physical details carry the feeling.
story_config.json
Chapter 1 · Scene 1● Secrets kept
Harbourmaster Stationery
The envelope had no stamp and no address, only the crest of the Outer Skerries light station pressed into paper gone the colour of tea. She unfolded the single sheet along creases worn soft as linen.
“If the children ever ask why we left the island,” he had written in his careful ledger hand, “tell them the winter came early. Do not tell them about the boat.”
Pinned to your Story Board
THE OBJECT
The unsent letter
Harbourmaster stationery, folded three times, never sealed.
objects/island-letter.md
THE SECRET🔒
Hidden until E12
They did not leave for the storm. They left before the inquest.
lore/the-inquest.md
THE VOICE
Warm close third
Quiet weight. Every sentence earned.
story_config.json
Chapter 1 · Scene 1● Secrets kept
The Three-Fifteen Pour
He looked like a guy who’d driven four hundred miles on bad coffee and worse radio. When he slid his palm across the Formica, the air over the salt shakers smelled for a second of cut clover and lake water.
“Six weeks,” he said, not looking at the pie case. “July. You can keep the car and the porch. I just need her name gone before the sun hits the turnpike.”
Pinned to your Story Board
THE RULE
The counter exchange
A memory is given willingly, before first light, into a cup.
lore/the-exchange.md
THE SECRET🔒
Hidden until E8
The cook bought the other half of that July last Tuesday.
characters/the-cook.md
THE VOICE
Noir first person
A tired voice that notices what people hide.
story_config.json
Chapter 1 · Scene 1● Secrets kept
Ten Minutes off Thursday
The clock over the grill clicked to 3:16. The kid in the wet trench coat kept his left hand in his pocket and set a gold medal down beside the napkin dispenser like it was a tip.
“Ten minutes,” he said. “Thursday, eleven-forty to midnight. Take it out clean and I walk into the precinct at eight telling the truth.”
Pinned to your Story Board
THE RULE
No dirty trades
The diner takes regrets, never a fresh crime. Usually.
lore/no-dirty-trades.md
THE SECRET🔒
Hidden until E10
The detective running the test sits in booth four most nights.
characters/detective-vance.md
THE VOICE
Noir first person
Hard edges, a ticking clock, a crooked smile.
story_config.json
Chapter 1 · Scene 1● Secrets kept
The Blank League
On the copperplate proof in her saddlebag, the valley between Crow Tor and the weir was six inches of uninked paper. Yet at four o’clock the mare stopped dead in the wet bracken, ears turned toward the mist.
Down in the hollow where nothing was permitted to stand, a heavy bell struck four slow notes, and three seconds later, the small iron chime of a schoolhouse answered it.
Pinned to your Story Board
THE PLACE
The parish of Oakhaven
Struck from the survey plates. Still sets the table for six.
locations/oakhaven.md
THE SECRET🔒
Hidden until E11
The surveyor who drew it first never left.
lore/first-surveyor.md
THE VOICE
Gothic dread
Fear grows slowly. The unseen carries the weight.
story_config.json
Chapter 1 · Scene 1● Secrets kept
The Seventh Milestone
The granite marker at the crossroads still bled pale dust into the nettles where a chisel had taken away the parish name. She brushed it with her glove and smelled coal smoke drifting up the orchard road.
Whoever had ordered the valley erased from the atlas had forgotten to tell the baker.
Pinned to your Story Board
THE PLACE
The chiselled milestone
Seven miles from the post road. Recarved this week.
locations/seventh-milestone.md
THE SECRET🔒
Hidden until E9
Her father’s mark is cut into the bridge.
characters/her-father.md
THE VOICE
Gothic dread
Precise, patient, wrong in small ways.
story_config.json
A sample we wrote for this page. In Calamus, Reed asks questions like this one through setup, pins your answers to the Story Board, and drafts a scene only when you ask for it.
Why stories stall
You have a story to tell. Step into your writer’s room.
A chat box is made for quick answers. A story needs a room that asks good questions, remembers Scene 2 in Chapter 20, and keeps the twist for the end.
A chat box
Our view, from trying it
—Writes the whole plot in its first reply, ending included.
—Keeps only what still fits in the conversation.
—Sounds like itself, not like your story.
—Leaves you with pasted text and no plan.
Your writer’s room
What Calamus does today
01Breaks the story with you in a nine-step interview before a word of prose.
02Keeps each fact on one Story Board page, in plain files on your device.
03Holds each secret back from a scene until the event that reveals it.
04Writes in the one style you picked, from first scene to last.
05Checks its Story Board changes for contradictions, and saves every change in your history.
Breaking the story
Nine conversations. Then the first scene.
Every new story starts with the writer’s room interview. Reed asks, you decide, and each answer becomes a page on your Story Board. You move to the next step when you are ready. Reed never does.
The idea
Your title, a one-line logline and the genre.
How it sounds
You pick one of nine styles. It never changes.
When
The era and the story’s present day.
Where
The places your story lives.
The people
Who tells it, and who they meet.
Things that matter
Objects and lore. The one step you can skip.
What happens
The events, in the order they happen.
The chapters
Every chapter planned, scene by scene.
Review
Reed checks the whole board for contradictions.
Inside the room
The story in your head, told the way it deserves.
No outlines to manage, no spreadsheets, no prompts. While you talk with Reed, the room keeps track of what makes a long story hold together.
01 · One voice, start to finish
Pick how your story sounds. It stays that way.
In the second interview step you choose one of nine styles. It never changes, so your last chapter sounds like your first. Click a style to hear the same moment told nine ways.
We wrote these nine passages for this page. In Calamus, scenes are written from your Story Board and your style’s craft guidance and example passages.
She stood on the wet platform until the tail lamps of the 6:14 disappeared into the birches. In her coat pocket, her fingers found the brass key to an apartment she had promised never to unlock again, and stayed there, warming the metal.
The reader lives close to one character’s heart in warm, easy prose.FAMILIAR AUTHORS · Emily Henry · Rainbow Rowell · Jojo Moyes · John Green
The 6:14 cleared the switches and went out of sight behind the birches. She stood on the planks in the rain. The key was in her coat pocket. She held it in her fist and did not go back to the car.
Short, plain sentences keep feeling under the surface for the reader to find.FAMILIAR AUTHORS · Ernest Hemingway · Raymond Carver · Cormac McCarthy · Elmore Leonard
Long after the red lamps of the 6:14 had drowned in the mist beyond the birches, the platform seemed to hold the tremor of the wheels. Under her wool cuff, the teeth of the brass key bit softly into her palm, cold as river iron.
Fear grows slowly in a place that seems wrong, where what is not seen is worse than what is seen.FAMILIAR AUTHORS · Edgar Allan Poe · Shirley Jackson · Daphne du Maurier · Sarah Waters
The 6:14 had a habit of leaving three minutes early whenever it suspected someone on the platform was having second thoughts. It vanished into the birches with a self-important toot, and left her alone with the rain and a very stubborn brass key.
A playful storyteller tells strange things plainly, with a wink at the reader.FAMILIAR AUTHORS · Roald Dahl · Neil Gaiman · Terry Pratchett · Lemony Snicket
The 6:14 left on time, which made one of us. I stood on the platform in the kind of rain that gets into your shoes and your opinions, and kept my hand on the key in my pocket. I’d promised to throw it in the river. The river was right there. So was I.
A tired narrator tells a corrupt world’s plot through a voice as revealing as the events.FAMILIAR AUTHORS · Raymond Chandler · Dashiell Hammett · Dennis Lehane · Megan Abbott
6:14. The train left on schedule and took her last excuse with it. Eleven minutes until he noticed the key was gone. Twenty to drive back across the river. She closed her fist around the brass and counted the cars in the lot. Four. One with its engine running.
The reader must turn the page because there is always a clock, a question and a threat.FAMILIAR AUTHORS · Lee Child · Gillian Flynn · John le Carré · Michael Crichton
And the train went, the 6:14, the way trains go out of a town, pulling the birches after it into the grey, and she stood on the wet boards with the key in her pocket, the small brass weight of it, which was also the weight of every evening she had climbed those stairs, and she thought, not yet, and did not know which way the words were facing.
The story moves through consciousness: memory, perception and long rhythmic sentences.FAMILIAR AUTHORS · Virginia Woolf · Toni Morrison · William Faulkner · Marilynne Robinson
Miss Hale had resolved, with the firmness of a woman making the same resolution for the third time, never to unlock that apartment again. She watched the 6:14 leave with every sign of relief, and kept her hand in her pocket, where the key she had quite forgotten to return was being remembered with great care.
An all-seeing narrator judges with humor drawn from the distance between what people say and what they mean.FAMILIAR AUTHORS · Jane Austen · Charles Dickens · P. G. Wodehouse · Zadie Smith · Jonathan Franzen
In the last year of the old line, when the iron road still ran north through the birchwood, the 6:14 went out from Harrow Halt for the final time. She who held the key of the high rooms stood in the rain and did not turn back; but the key she kept, as her mothers had kept the keys of houses the river took.
A large world is told with weight, with history and legend behind every scene.FAMILIAR AUTHORS · J. R. R. Tolkien · Ursula K. Le Guin · N. K. Jemisin · Patrick Rothfuss
02 · Secrets stay secret
Your twist won’t leak five chapters early.
Each scene is written from the timeline up to that scene’s event. Anything a later event reveals stays out of the brief. Drag the marker and watch the brief change.
E1E2E3E4E5E6E7E8E9E10E11E12
Writing the scene at E4: A name on the manifest
✓Who he wascharacters/grandfather.mdIn the brief
✓What the tickets showobjects/ferry-tickets.mdIn the brief
⛔Who pays for the boathouselocations/creek-end.mdHeld until E6
⛔Where he really was that nightlore/wireless-room.mdHeld until E9
⛔Why they left the islandlore/the-inquest.mdHeld until E10
03 · Nobody gets lost
See who has been gone too long.
The Character Map shows every character against every chapter. When someone is missing for eight chapters or more, it flags the gap. Tell Reed the absence is planned, and the flag turns quiet.
Sample Character Map, 14 chapters in three acts
Act I
Act II
Act III
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Clara OstrowLead
Julian OstrowSupporting
The HarbourmasterSupporting
Aunt MaeMinor
Julian Ostrow: Planned 3–11 · “At sea on the trawler until the storm.”
The Harbourmaster: Absent 4–11
PresentPOVPlanned absenceAbsence to review
Ask Reed about the absences
04 · Pacing you can see
Every scene, measured against its kind.
A scene is an arrival, an argument, a reveal or one of five other kinds. Calamus measures what you drafted against the examples of that kind in your style.
Ch 7 · Scene 2 · dreaddialogue
28% dialogue. Dread scenes in this style have 0–5%.
Ask Reed
05 · Continuity, guarded
Reed checks before it writes.
Before Reed changes a Story Board page, it compares the new text with every page it touches. If they disagree, nothing changes and Reed sees what conflicts.
write_page chapters/chapter-07.md
✗ Refused. Nothing changed.
Scene 2 puts Julian at the harbour.
characters/julian.md: at sea, chapters 3–11.
↳ Reed sees the conflict.
06 · Nothing is lost
Every change saved. Undo any message.
Each change Reed makes goes into your story’s history as its own entry. Don’t like a turn? Undo the message. Want to approve each edit? Turn off Direct edits.
Reed: write_page julian.mdUndo
Reed: write_page chapter-07.mdUndo
Edited chapter-06.md
Auto-snapshot before sync
A room you can trust
Built not to make things up about the real world.
Your story is fiction. The facts it stands on should not be. Reed works under the same honesty rules we hold ourselves to.
No invented references
Reed never names a book, author, quote or fact about the real world that it has not found. When it is not sure, it says so, or it searches the web.
Sources come with facts
A fact Reed finds on the web reaches your story only on a Story Board page that carries the source link.
Your story’s facts are yours
Scenes add no names, places, history or secrets that your Story Board does not hold. The board is the canon.
Why we tell stories
Everyone has a story worth sharing. Bring yours to life.
The best moment isn’t the last scene. It’s handing the finished story to your family, your friends or your readers, and watching them get lost in a world that came from you.
❧ ❧ ❧
For Dad, who told us about the Northlight every summer, and for the grandchildren who never got to hear him tell it.
A sample dedication · Exported from Calamus
On the Mac, export your story as an EPUB for e-readers or a PDF to print. Export uses pandoc and Typst from Homebrew.
Plans
Start free. Go Pro when the story grows.
Every plan gets every app update. Your stories stay on your device on every plan.
Free
Tell one story.
One story you can write in. Others open to read and export.
Reed, the interview, the Story Board and all nine styles.
Bring your own AI key from an OpenAI-compatible provider, such as OpenRouter.
Story history, snapshots and daily automatic backups.
No sync between devices.
Coming soon
Pro · monthly or annual
Tell every story.
Price coming soon
As many stories as you like.
AI included. No keys, no model settings. Calamus picks the models.
1,500 credits each month. Annual plans get all twelve months of credits at once.
Pro sync and cloud snapshots across your Mac and Android devices.
No account: one license key works on all your devices.
Need more credits?
$5500 credits
$101,100 credits+10% bonus
$202,400 credits+20% bonus
Start a 14-day trial with a card from Settings → Plan in the app. The trial includes 600 credits and Pro sync. Credits pay for Reed, drafting, continuity checks and images. Cancel from the billing portal at any time.
Get Calamus
Pull up a chair. Soon.
The apps for Mac and Android are coming soon. The whole writer’s room will run on your device.
Mac
For Macs with Apple silicon.
Coming soon
Android
For Android 8 or later.
Coming soon
Questions
Straight answers.
Does Reed write my story for me?
You make the creative calls. Reed asks questions with choices to click, keeps the Story Board, and drafts one scene, or at most one chapter, each time you ask. Turn off Direct edits in a thread and Reed’s edits come to you as tracked changes to accept or refuse. Every change Reed makes is saved in your story’s history, and you can undo a message.
Where do my stories live?
On your device, as plain Markdown files in a library folder. Story files go to our service only if you turn on Pro sync. To work, Reed sends the parts of your story it needs to the AI models: through your own provider on Free, or through our relay on a trial or Pro. The relay does not log or store prompts, replies or images.
Do I need my own AI account?
On Free, yes: you bring the key for an OpenAI-compatible provider, such as OpenRouter, and choose the models. On a trial or Pro, Calamus supplies the AI and chooses the models. You need no key.
Do I need an account?
No. Calamus asks for no email and no password. Pro gives you a license key, and the key is all you need on each of your devices.
Which devices does it run on?
The apps are coming soon for Macs with Apple silicon and Android 8 or later. The whole studio runs on the device. Pro sync carries your stories between them.
Can two people write one story together?
Not today. Pro sync is for one storyteller who writes on one device and later on another. It does not do live editing by two people at once.
Where do the styles come from?
Each of the nine styles names the familiar authors it draws on, and holds craft guidance with 24 original example passages: three for each of eight scene kinds. None is copied from a published book. Calamus measures those passages to set each scene kind’s targets for sentence length and dialogue.
What’s the spark you’ve been carrying?
Your personal writer’s room is ready when you are.
